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The purpose of this study was to develop methodology and procedures for the use of marginal-quality aggregates (aggregates that do not meet existing specifications) in the construction of surface pavement layers of asphalt and portland cement concrete. This paper describes the properties of the bituminous and zero-slump mixes made from marginal aggregate materials and the testing of a specially designed test section, which consists of both flexible and rigid pavement surface layers made of marginal-quality aggregate. Also presented are construction techniques and the behavior of the marginal aggregate mixes subjected to accelerated 4.5-Mg (5-ton) military dump truck and two types of tracked vehicle traffic. Recommended properties of asphalt and portland cement concrete mixes made of marginal aggregate materials are presented to aid the engineer in constructing paved surfaces that are to be used only for limited traffic and short periods of service life. (Author)